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WorksheetsQuiz_PCS67-101_Lec 1_Homeostasis
Total questions: 11
Worksheet time: 9mins
Which of the following best describes homeostasis?
Static condition
Dynamic constancy
Fixed equilibrium
Passive response
Which is a component of a feedback system?
Substrate
Ion channel
Sensor
Modulator
What is the primary purpose of negative feedback?
Amplify responses
Stimulate hormone release
Maintain stability
Destroy pathogens
Which of the following represents a positive feedback mechanism?
Sweating in hot environment
Blood glucose regulation
Clot formation after vascular injury
Blood pressure regulation
The Na⁺/K⁺ ATPase pump is crucial in maintaining ...................
Hormonal balance
Membrane potential
Plasma pH
Osmotic pressure
Which of the following responses most directly counteracts an increase in body temperature?
Breathing rate increases
Water output in urine increases
Release of sugar from the liver increases
Sweat production increases
Which of the following responses most directly counteracts a decrease in blood glucose?
Breathing rate increases
Water output in urine increases
Release of sugar from the liver increases
Sweat production increases
Which of the following responses most directly counteracts an increase in water levels in body?
Breathing rate increases
Water output in urine increases
Release of sugar from the liver increases
Sweat production increases
Which of the following responses most directly counteracts an increase in CO2 levels in the blood?
Breathing rate increases
Water output in urine increases
Release of sugar from the liver increases
Sweat production increases
Positive feedback loops ........(1)........... a stimulus. These loops .........(2).......... .
1. amplify
2. return a system to a steady state
1. amplify
2. drive physiological processes to completion
1. counteract
2. return a system to a steady state
1. counteract
2. drive physiological processes to completion
Negative feedback loops ........(1)........... a stimulus. These loops .........(2).......... .
1. amplify
2. return a system to a steady state
1. amplify
2. drive physiological processes to completion
1. counteract
2. return a system to a steady state
1. counteract
2. drive physiological processes to completion
